Presidential address on safety in surgery.
D000005:Abdomen / Q000601:surgery; D000758:Anesthesia; D001706:Biopsy; D006666:History of Medicine; D006801:Humans; D009369:Neoplasms / Q000601:surgery; D011182:Postoperative Care; D011300:Preoperative Care; D011859:Radiography; D013514:Surgical Procedures, Operative